Motif Feedback (MFB) is a high-active loyalspeaker system developed by the Dutch Philips brand in the early 1970s. The loudspeaker has built-in amplifiers and displays the feedback sensors on the woofers. The sensor measures the output signal of the woofer and compares it to the input signal amplifier. This results in very low distortion and subsequently a broader low frequency response in a relatively small scope. Any distortion caused by the enclosure or the woofer itself is immediately corrected by the feedback loop. To some extent, the sensor-feedback system also compensates for the acoustics of the non-optimal room.
Although the Motivation Feedback technology has been experimenting for several years, Philips was the first company to successfully create a working prototype and create a line of loudspeakers and commercial equipment. The product manager of the High Fidelity Philips group, Piet Gouw, is responsible for launching most of the Motional Feedback loudspeakers and other high fidelity equipment. Today, at the age of 86, Gouw is an active member of MFBfreaks.com, home to the Motional Feedback collectors. He shared his history and answered questions on the MFBfreaks.com forum.
Today, Motif Feedback is used by high-end audio designers. It is said that the owner of Tentlabs Guido Tent has designed an active subwoofer using Motional Feedback technology.
Video Motional Feedback
References
Maps Motional Feedback
External links
- MFBfreaks.com - The Official Feed Official Feedback Collector website (MFB) with stories of Piet Gouw (in Dutch)
- Another Philips MFB website (in Dutch)
- MFB Patente, Funktion (in German)
- Panasonic MF-800 Motional Feedback power amplifier and speakers from the 1960s using Luxman technology
- Panasonic Motsi Response Articles from Miami News, October 19, 1964.
Source of the article : Wikipedia
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